Why TV shows like CSI

may not always be realistic!

Crime Prevention Officer David Timm of Cannon Falls explained some of the equipment and technology used by the police department in crime scene investigations at the third annual Senior Health Fair at the community center.

Timm displayed some of the techniques including scene photography, marking and identifying evidence, finger print detection and processing, and using plaster to make molds of tire tracks.
He also explained that crime scene investigation doesn’t end there as all evidence must be packaged individually and sealed to prevent tampering and then the evidence is placed in a secure evidence room to establish the chain of custody for each item of evidence.

It's just an example of how local law enforcement handles a crime scene - as compared to some of the TV shows.

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